{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SQ2270-0KA08","brand":"Siemens","brandSlug":"siemens","productSlug":"5SQ2270-0KA08","canonicalUrl":"https://aoctrl.com/siemens/5SQ2270-0KA08","factsUrl":"https://aoctrl.com/api/mcp/products/5SQ2270-0KA08","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SQ series, miniature circuit breaker, 5SQ2270-0KA08, 2-pole, C-curve, 8 A, 400 V AC, 3 kA breaking capacity, IP20.","salesMarkdown":"It is designed for branch-circuit overcurrent and short-circuit protection in final distribution panels, with a breaking capacity of 3 kA per EN 60898. The 2-pole configuration with neutral switching means it disconnects both phase and neutral, which is standard for single-phase final circuits in many European and IEC-based installations. ## Fit and installation The IP20 finger-safe terminals are standard for enclosed distribution boards — no special sealing needed inside a panel. Energy limiting class 3 indicates it restricts let-through energy well, reducing stress on downstream equipment during a fault. The MCB is designed to EN 60898, the harmonized European standard for household and similar installations. The SENTRON brand carries the usual Siemens compliance documentation — RoHS, REACH, and CE marking are standard for this series. For a maintenance-spares purchaser or quality-doc controller, the nameplate data and declaration of conformity are available from Siemens directly or through the supply chain.","metaTitle":"Siemens SENTRON 5SQ2270-0KA08 MCB, 2-Pole, C-Curve, 8 A, 400","metaDescription":"Siemens SENTRON 5SQ2270-0KA08 miniature circuit breaker, 2-pole, C tripping characteristic, 8 A rated current, 400 V AC, 3 kA breaking capacity per EN 60898, IP20. Sourced to order","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Number of poles":"2","Type of voltage":"AC/DC","lifecycle_stage":"current","Installation depth":"55 mm","Product brand name":"SENTRON","Protection class IP":"IP20","Overvoltage category":"3","Energy limiting class":"3","Number of width units":"2","Number of poles / Note":"2P","circuit-breaker / Design":"5SQ","Current / at AC / rated value":"8 A","Tripping characteristic class":"C","acc. to EN 60898 / rated value":"3 kA","Supply voltage / at AC / rated value":"400 V","Supply voltage frequency / rated value":"50 Hz","Product function / neutral conductor switching":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=117063&mlfb=5SQ2270-0KA08","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SQ2270-0KA08/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SQ2270-0KA08?","answer":"The breaking capacity is 3 kA per EN 60898. This is sufficient for most residential and light commercial final distribution boards where the prospective short-circuit current is under that threshold."},{"question":"Where can I buy 5SQ2270-0KA08?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here."},{"question":"Will 5SQ2270-0KA08 drop into a panel specified around the 5SQ2270-2YA04 without rewiring?","answer":"Both are 2-pole, 400 V, C-curve SENTRON MCBs with the same DIN-rail footprint and 55 mm depth. The difference is the current rating: 8 A on this part versus 4 A on the 2YA04. If the panel wiring and load are sized for 8 A, it drops in physically without rewiring — but the circuit protection rating must match the downstream cable and load."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SQ2270-0KA08","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/5SQ2270-0KA08 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}